Thlaspi avalanum, Pancic

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1964, Flora Europaea - Volume 1. Lycopodiaceae to Platanaceae, Cambridge University Press : 321

22. T. avalanum Pancic , FI. Belgr. 92 (1865).

Stock with stoloniferous branches; stems 8-25(-60) cm, erect. Rosette-leaves broadly elliptical to suborbicular, long-petiolate; cauline leaves ovate-oblong, obtuse, with obtuse auricles. Sepals 2- 2-5 mm; petals (3-5-)4-5 mm, white. Inflorescence much elongating in fruit. Silicula 5-7 mm, narrowly obovate to triangular-obcordate, emarginate above; style 1 -2 mm, exceeding the notch. Seeds 3-8 in each loculus. 2n = 14. Carpathians; Balkan peninsula. Al Bu?It Ju?Po Rm Rs (W).

T. pindicum Hausskn. , Mitt. Thür. Bot. Ver. nov. ser. 3-4: 115 (1893), with a shorter fruiting raceme, fruits 10-11 mm and style as long as the notch, was described from Greece and may be a variant of this species.

T. cochleariforme DC. , Reg. Veg. Syst. Nat. 2: 381 (1821), from near the boundary of Europe in C. Ural (Kystym region) and possibly not occurring within European Russia, has larger, unequal petals (the outer 5-6- 5 mm, the inner 6-7- 5 mm), the silicula 5-9- 5 mm and the style 1 -2-25 mm.